| 负反馈放大电路的理论计算与仿真 |
| |
| 引用本文： | 杨一军,陈得宝,李峥. 负反馈放大电路的理论计算与仿真[J]. 淮北煤师院学报, 2009, 0(1): 38-41 |
| |
| 作者姓名： | 杨一军 陈得宝 李峥 |
| |
| 作者单位： | 淮北煤炭师范学院物理与电子信息学院,安徽淮北235000 |
| |
| 基金项目： | 基金项目：安徽省教育厅资助项目（2008jyxm481）;淮北煤炭师范学院重点资助项目（2007【67】） |
| |
| 摘 要： | 文章利用MATLAB软件编程，对设计的由运算放大器构建的电流串联负反馈放大电路采用方框图分析法进行理论计算．结果表明：闭环增益与开环增益满足基本关系式；引入负反馈后稳定性得以提高，输出电阻增大；同时使用EWB对开环与闭环增益也进行了仿真分析，结果与理论计算一致，从而定量地验证了负反馈放大电路中的结论与关系．
|
| 关 键 词： | 负反馈 方框图 MATLAB 仿真 |
Simulation Analysis and Theoretical Calculations in Negative Feedback Amplifier Circuit |
| |
| YANG Yi-jun,CHEN De-bao,LI Zheng. Simulation Analysis and Theoretical Calculations in Negative Feedback Amplifier Circuit[J]. Journal of Huaibei Teachers College(Natural Sciences Edition), 2009, 0(1): 38-41 |
| |
| Authors: | YANG Yi-jun CHEN De-bao LI Zheng |
| |
| Affiliation: | ( School of Physics and Electronic Information, Huaibei Coal Industry Teachers College, 235000, Huaibei, Anhui, China) |
| |
| Abstract: | By adopting MATLAB software, the paper applies the block diagram for theoretical calculations of the series negative current feedback amplifier circuit which is designed by operational amplifier. The results indicate： 1 ） closed-loop gain and open-loop gain to meet basic relationship; 2） the stability of feedback is enhanced and output resistance increased. Furthermore, the result of open-loop and closed-loop gain of theoretical calculation is consistent with simulation which is applied by EWB software, which confirmed elementary conclusions and relationships in negative-feedback amplifier quantitatively. |
| |
| Keywords: | negative feedback block diagram MATLAB simulation |
| 本文献已被 维普 等数据库收录！ |
